Abstract: A dispenser for discharging media to be used in conjunction with a pressure chamber comprises: a medium outlet; an outlet channel leading into the medium outlet, the outlet channel defining a medium flow in operation, the outlet channel, at a distance from the medium outlet, having a channel portion provided to connect to the pressure chamber and operable for producing a delivery pressure in a range of increasing medium pressures, from a relatively lower medium pressure to a relatively higher medium pressure, the outlet channel having adjustable passage cross-sections; and, a controller for increasing the passage cross-sections to a relatively larger cross-section at relatively lower medium pressure and to constrict the passage cross-sections smaller than the relatively larger cross-section at the relatively higher medium pressure.

Abstract: A discharge apparatus provided as a single spray has in the interior of the discharge connection as an evaporation barrier for the medium a rotary closure, which can be opened and closed by a mutual rotation of the casing and the head or the body and the medium reservoir. For this purpose a shaft part in the form of a filler is formed from two longitudinally, interconnected bar parts, which rotatably engage in one another and form closure parts of the closure located within a cover sleeve. This allows very long storage times of the filled discharge apparatus.

Abstract: A dispenser is disclosed which is made up of two telescoping sections. One section holds at least one volume of a substance to be discharged. Telescoping motion of the sections compresses the substance to be discharged to force it through a passage in the section not holding the substance volume to be discharged therefrom. Motion between the section is limited to ensure precise metering of a charge to be dispersed.

Abstract: A discharge head is connected to a double pump for air and liquid. The air and liquid are separately passed by pump actuation through a flow calming member and then into a combining member in a way such that the air enters in the form of numerous individual jets and under a low pressure and at a low flow rate into a liquid-wetted screen unit provided in a widened chamber. In the vicinity of the screen unit which are supplied with liquid from a chamber, the liquid can be foamed in a stepwise manner with the aid of air until the foam is discharged ready for use through an end channel.

Abstract: A magazine body (2) with a plurality of radial magazine chambers (3) by insertion in an axial fastening device (20) with chamber inlets (4) is made to coincide with a medium passage opening (30) and with outlets (5) is made to coincide with a connecting opening (33) of a suction head (17), so that the medium occurs in uninterrupted manner at the inlets (4). The suction head (17) evacuates all the magazine chambers (3) and then filled via the passage (30) from a medium supply (12) and against a medium retaining device (36). With the ejection of the filled magazine chambers (33) the inlets and outlets (4, 5) are closed in medium-tight manner by stripping from closure parts (8, 9).

Abstract: A media dispenser (2) has a discharge head (3), a medium chamber (30) holding a volume of medium filled under pressure, and a hand-operable propellant pump (5). By manual compression of the balloon-like pressure chamber (6) comprising film portions (13, 14), propellant is conveyed into the medium chamber (30), with pressure sufficient to cause the opening of a valve (26), and delivery of a mixture of medium and propellant through an atomizing nozzle (21). The nozzle (21) is tightly closed by a closure (39) connected to a common carrier (40) for a plurality of the dispensers (2). The carrier (40) has interruptible connections to the head (3) which can be interrupted to remove closure 39 and open atomizing nozzle 21.

Abstract: A dispenser is disclosed which is made up of two telescoping sections. One section holds at least one volume of a substance to be discharged. Telescoping motion of the sections compresses the substance to be discharged to force it through a passage in the section not holding the substance volume to be discharged therefrom. Motion between the section is limited to ensure precise metering of a charge to be dispersed.

Abstract: A discharge head has an operating cap and a discharge connection for fitting on the operating shaft of a discharge apparatus. The discharge head has a shaft over most of its length positioned in contact-free manner within an outer sleeve of the discharge connection, and which is provided with a connecting member for fitting on the operating shaft. The other shaft end of the discharge head shaft is only fixed by press fit in a short inner sleeve and forms a nozzle core, and at the end a free-standing end wall, at which the medium is transversely deflected from a central portion of an outlet channel and is supplied via longitudinal channels to a discharge opening.

Abstract: In a discharge apparatus (1) the restoring spring (21) of a restoring system (20) for a discharge pump (7) and for valves (26,30) is positioned, separated from the medium, in a tightly closed spring chamber (22). The medium inlet (31) into the discharge pump (7) is positioned eccentrically thereto and issues into an external, annular presuction chamber (15) from which the medium passes via an intermediate valve (30) into the pump chamber (39). This avoids contact between the medium and metallic parts and this gives both favorable flow paths for the medium and a compact pump construction.

Abstract: In an applicator for single use without pump suction, a plurality of partial strokes can be executed sequentially and releasably limited at the corresponding end by a limited stop. The stopping device provided for this purpose is arranged between two cap-shaped housing parts which interlock at their open ends. The housing parts fully accommodate a pump and are connected to each other by a snap connection.

Abstract: A dispenser for dispensing a single dose of a powder medium is incorporated in an essentially hermetically sealed medium chamber with an essentially hermetically sealed compressed air pump. The pump chamber can be opened to the medium chamber through an inlet valve only after a first partial section of the pump stroke, whereupon the compressed air flow fluidizes the powder and expels it in a spurt to the dispenser outlet. A basic body forms an outer housing of elongated cross section with a freely accessible pump cylinder. The dispenser outlet can be easily gripped at the handles with which it is actuated.

Abstract: A discharge apparatus (1a) has at least one slide (7a) with a bearing and/or contact surfaces (17a, 21a or 31a, 35a) engaging in pretensioned manner in at least one working position, in which for at least one of the surfaces is provided a device (20, 20'), with which it is possible to vary the compressive stress acting on the surface as a function of the control path of the slide. For example, piston lips (18a, 22a) can be relived in the rest position for reducing temperature-dependent deformation tendencies, or a valve closing stress can be increased or decreased.

Abstract: A valve for a dispenser has a spherical valve body which is fixed in the closed position by a catch mechanism. When a predetermined dispensing pressure is applied, the valve body is moved out of the locked position and displaced, like a piston, into a sealed receiving chamber, in which it is fixed. This results in a very simple, reliable closure of the outlet channel, which only needs to be opened once.

Abstract: In a discharge apparatus (1) on a basic body (8) is provided a pneumatic pump (19) and axially adjacent thereto a casing chamber (14) for receiving a magazine (15) for individual doses of a pulverulent or similar medium, whose magazine chamber (30) can be transferred into a discharge position, in which it is connected by one inlet end (46) and one outlet end (47) to a feed path (20) for the pumped air. At remote ends of the basic body (8) are provided pressure handles (5, 6) for the discharge actuation and a handle (7) for indexing or replacing a magazine body (16). Opening devices (50, 51) are used for the automatic opening of the magazine chamber (30) on transfer into the discharge position. This leads to a very reliable operation in the case of compact construction and easy handling.

Abstract: A discharge apparatus (1) has for the discharge actuating device (5) a self-engaging catch system (29) against further actuation at the end of each actuating cycle. For unlocking purposes an actuator (11, 23) must be manually rotated and simultaneously adjusting cams (33) of a discharge counter (20) are so transferred into an operating position, that they perform an indexing step during the next stroke.

Abstract: A discharge apparatus (1) is constructed as an air pump with two axially interconnected and constantly communicating pressure chamber parts (20, 21). Of these one surrounds a cap-like mounting support (10) for a further medium pump (2) and/or a reservoir (3) on the outer circumference. The mounting support (10) serves as a piston-like displacement body for the other pressure chamber part (21) and as a guide for the displaceable component (5) of the discharge apparatus (1). From the outside a fixing cap (31) can be inserted in a substantially clearance-free manner into the mounting support (10) and forms the connection between all the separate subassemblies, namely the discharge apparatus (1), the medium pump (2) and the reservoir (3). This gives a very simple construction and installation, accompanied by a high delivery volume.

Abstract: For the manual discharge of a pulverulent medium a discharge apparatus (1) has an air pump (9), whose compressed air flow receives the powder medium via an injector (37) and a turbulence chamber (38) from a dosing mechanism (25) automatically refillable from a medium reservoir (4) and is discharged accompanied by acceleration through an outlet channel (21). Thus, with a compact construction and easy handling, the production of an aerosol for inhalation purposes or the like is ensured in simple manner.

Abstract: For restoring purposes, a discharge apparatus (1) has a gas spring (53) and for the displacement of dead volumes a filling body (70) which, like two valve bodies (23, 54) movable against one another of two valves (21, 55) with different functions, can be formed by a single component. An exposed operating ram or plunger (20), which surrounds an outlet channel (19) and is contact-free over most of its length, is constructed in one piece with a pump piston (17) and a nozzle core (48) of an outlet opening (8), while being directly connected to the spring (53). This gives high operational reliability of the discharge apparatus (1) with a simple construction.

Abstract: A discharge apparatus for media comprises two functional units, each including a medium reservoir, a discharge unit operatively connected to the medium reservoir, and a depressible discharge actuator operatively connected to the discharge unit. A mechanism is further provided for simultaneously depressing the discharge actuators. At least one of the functional units is movable with its associated discharge actuator over part of the depression of the discharge actuator, so that the media are not discharged from the medium reservoirs during movement of the functional units.

Abstract: In a discharge nozzle (1) through an inner nozzle opening (44) liquid is sprayed in a spray cone against a pointed conical guidance surface (47) in a chamber (29) and in its zone at the nozzle opening (44) said spray cone is transversely exposed to the action of a compressed air flow from a transverse inlet (27). Roughly facing the transverse inlet (27) in a slot-shaped channel portion (30) of the chamber (29) an air flow is passed from a longitudinal inlet (28) to a chamber outlet (52), to which is transferred the aerosol produced in the chamber (29), which is accelerated and then, after deflection at (31), is directed in the opposite direction against the impact surface (34) of an impact atomizer (20), where there is a deflection (32) in the opposite direction and then the very fine aerosol is immediately discharged through an end channel portion (37) and an outlet (38) into the open.